How to use "gear" in a sentence

"Yeah." He switched on the engine and threw the car in gear

First, they had visited a sporting-goods store, purchasing two Gore-Tex Thermolite storm suits, boots, snowshoes, compact tins of backpacker's rations, cans of Sterno, and other survival gear

He twisted around, leaned over the back of the seat, and quickly fetched the rope from the pile of outdoor gear in the cargo hold